1.64 m = ___ cm
164 cm
16.4 cm
1640 mm
16400 mm
We know 1 m = 100 cm, so 1.64 m=1.64×100=164 cm.
Also, 1 cm = 10 mm, i.e. 164 cm=164×10=1640 mm
1 km = ___ cm.